Home / 485,517,002.55-728,275,503.83-482,115,780.15

Finding the Fourth Proportional to 485,517,002.55, 728,275,503.83 and 482,115,780.15

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Solution

The fourth proportional to 485,517,002.55, 728,275,503.83 and 482,115,780.15 is: 723,173,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,517,002.55 : 728,275,503.83 = 482,115,780.15 : x
  2. Step 2: Convert to fraction form
    485,517,002.55/728,275,503.83 = 482,115,780.15/x
  3. Step 3: Cross multiply
    485,517,002.55x = 728,275,503.83 × 482,115,780.15
  4. Step 4: Simplify right side
    485,517,002.55x = 351,113,112,690,724,160
  5. Step 5: Solve for x
    x = 351,113,112,690,724,160/485,517,002.55
  6. Step 6: Final answer
    x = 723,173,670.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.